ISO and exposure compensation – what’s the relationship?

If I shoot a digital SLR – let’s say a Nikon D200 or a Nikon D40 – at 800 ISO and set +1.0 exposure compensation, is that the same as shooting at 400 ISO? I wanted a theoretical answer to that question because it seemed to me that increasing the sensitivity of the sensor byContinue reading “ISO and exposure compensation – what’s the relationship?”